package com.fdd.spring.proxyexercise;

public class Sub implements Cal{

    public Sub(double i, double j) {
        System.out.println("Sub的构造器");
    }
    @Override
    public double getSub(double i, double j) {
        return i - j;
    }

    @Override
    public double getSum(double i, double j) {
        return i + j;
    }
}
